Increases damage of Meteor Storm Buster and Jupitel Thunderstorm by 5%.
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[Bonus by Weapon Grade]
[Grade D]: Damage of Meteor Storm Buster and Jupitel Thunderstorm +3%.
[Grade C]: Magical Damage against enemies of every size +10%.
[Grade B]: Damage of Meteor Storm Buster and Jupitel Thunderstorm +4%.
[Grade A]: Damage of Meteor Storm Buster and Jupitel Thunderstorm +6%.